Commit Graph

334 Commits

Author SHA1 Message Date
chao.an
99cde13a11 net/inet: move socket flags into socket_conn_s
Signed-off-by: chao.an <anchao@xiaomi.com>
2022-02-10 15:04:33 -03:00
chao.an
2026450333 net/udp: replace the common connect prologue
Signed-off-by: chao.an <anchao@xiaomi.com>
2022-02-10 15:04:33 -03:00
chao.an
39e142243d net/tcp/udp: move the send callback into tcp/udp structure
Signed-off-by: chao.an <anchao@xiaomi.com>
2022-02-10 15:04:33 -03:00
Petro Karashchenko
08043fb5bc net: unify FAR keyword usage for all net buffer memory mapped buffers
Signed-off-by: Petro Karashchenko <petro.karashchenko@gmail.com>
2022-01-20 01:42:56 +08:00
Petro Karashchenko
9551de7115 net: use HTONS, NTOHS, HTONL, NTOHL macro in kernel code
Signed-off-by: Petro Karashchenko <petro.karashchenko@gmail.com>
2022-01-18 10:59:47 +01:00
chao.an
f345f3dc2e net/devif_callback: add support for CONFIG_NET_ALLOC_CONNS
Signed-off-by: chao.an <anchao@xiaomi.com>
2022-01-02 01:25:14 +08:00
chao.an
26370cd2f7 net/udp: add support for CONFIG_NET_ALLOC_CONNS
Signed-off-by: chao.an <anchao@xiaomi.com>
2022-01-01 20:40:02 +08:00
Juha Niskanen
422ceec99b Fix typos in comments and Kconfig files
Signed-off-by: Juha Niskanen <juha.niskanen@haltian.com>
2021-12-21 03:26:16 -06:00
chao.an
b10dcf7c0d net/udp: fix the invaild udp destination address
If the udp socket not connected, it is possible to have
multi-different destination address in each iob entry,
update the remote address every time to avoid sent to the
incorrect destination.

Signed-off-by: chao.an <anchao@xiaomi.com>
2021-12-17 11:25:06 -06:00
chao.an
3b69d09c80 net/udp/icmp: correct the unreadchable handling
Reference RFC1122:
https://datatracker.ietf.org/doc/html/rfc1122
----------------------------------------------

4.1.3  SPECIFIC ISSUES

  4.1.3.1  Ports

    If a datagram arrives addressed to a UDP port for which
    there is no pending LISTEN call, UDP SHOULD send an ICMP
    Port Unreachable message.

Signed-off-by: chao.an <anchao@xiaomi.com>
2021-11-26 08:47:54 -06:00
Alexander Lunev
1e25602678 net/can,icmp,icmpv6,tcp,tcp_timer,udp: device should poll only those connections that are bound to the device.
tcp_timer: eliminated false decrements of conn->timer in case of multiple network adapters.
The false timer decrements sometimes provoked TCP spurious retransmissions due to premature timeouts.
2021-10-11 23:09:00 -07:00
Alexander Lunev
36fbedcbfc net/devif/devif_callback.c: corrected the connection event list to work as FIFO instead of LIFO.
In case of enabled packet forwarding mode, packets were forwarded in a reverse order
because of LIFO behavior of the connection event list.
The issue exposed only during high network traffic. Thus the event list started to grow
that resulted in changing the order of packets inside of groups of several packets
like the following: 3, 2, 1, 6, 5, 4, 8, 7 etc.

Remarks concerning the connection event list implementation:
* Now the queue (list) is FIFO as it should be.
* The list is singly linked.
* The list has a head pointer (inside of outer net_driver_s structure),
  and a tail pointer is added into outer net_driver_s structure.
* The list item is devif_callback_s structure.
  It still has two pointers to two different list chains (*nxtconn and *nxtdev).
* As before the first argument (*dev) of the list functions can be NULL,
  while the other argument (*list) is effective (not NULL).
* An extra (*tail) argument is added to devif_callback_alloc()
  and devif_conn_callback_free() functions.
* devif_callback_alloc() time complexity is O(1) (i.e. O(n) to fill the whole list).
* devif_callback_free() time complexity is O(n) (i.e. O(n^2) to empty the whole list).
* devif_conn_event() time complexity is O(n).
2021-09-18 21:01:39 -05:00
chao.an
e10b546006 net/udp: fix buffer release handling on failed buffer alloc
Attempt to release write buffer on failed UDP write I/O buffer
alloc and tryalloc failed to wrb->wb_iob assertion.

Signed-off-by: chao.an <anchao@xiaomi.com>
2021-09-15 12:03:21 +08:00
chao.an
7d4502aca6 net/socket: add SO_SNDBUF support
Signed-off-by: chao.an <anchao@xiaomi.com>
2021-07-20 20:24:58 -07:00
chao.an
f52757f90a net/wrb: add tcp/udp_inqueue_wrb_size() interface
Signed-off-by: chao.an <anchao@xiaomi.com>
2021-07-20 20:24:58 -07:00
Huang Qi
e5c278981a net: Rename IP_TTL to IP_TTL_DEFAULT
Since a SOL option IP_TTL exist, we should rename this IP_TTL
in netconfig.h to avoid confusion.

Signed-off-by: Huang Qi <huangqi3@xiaomi.com>
Change-Id: Ib04c36553f23bce8d362e97294a8b83eaa050cf3
2021-07-12 16:30:37 -03:00
chao.an
b901f22c27 net/socket: add SO_RCVBUF support
Signed-off-by: chao.an <anchao@xiaomi.com>
2021-07-06 01:44:55 -05:00
chao.an
eabe535de7 net/inet: add support of FIONREAD
Signed-off-by: chao.an <anchao@xiaomi.com>
2021-07-05 06:20:52 -05:00
Xiang Xiao
5b2a17b892 Include assert.h in necessary place
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2021-06-08 13:06:08 -07:00
Xiang Xiao
001e7c3e76 sched: Don't include nuttx/sched.h inside sched.h
But let nuttx/sched.h include sched.h instead to
avoid expose nuttx kernel API to userspace.

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2021-05-24 12:11:53 +09:00
Gregory Nutt
7332d2decf net/: Add missing packet filtering checks
NuttX provides the UDP_BINDTODEVICE socket option.  This is a UDP protocol-specific implementation of the semi-standard Linux SO_BINDTODEVICE socket option:  "SO_BINDTODEVICE forces packets on the socket to only egress the bound interface, regardless of what the IP routing table would normally choose. Similarly only packets which ingress the bound interface will be received on the socket, packets from other interfaces will not be delivered to the socket." https://codingrelic.geekhold.com/2009/10/code-snippet-sobindtodevice.html

If CONFIG_NET_UDP_BINDTODEVICE is selected and a UDP socket is bound to the device, then unrecognized packets UDP packets must not be dropped, but must be forwarded along to the bound socket unconditionally.

It the typical case, this should have no impact.  It does effect the applications that use DHCP and do select the UDP_BINDTODEVICE socket option.

This PR replace existing improper logic in the code and also the improper attempts to fix problems from PR #3601 and PR #3598.  Those changes are improper because they expose DHCP appliction dependencies in the OS, breaking modularity and independence of the OS and application.

Tested with stm32f4discovery:netnsh with CONFIG_NET_UDP_BINDTODEVICE.  A proper DHCP test setup is needed, however.
2021-04-29 12:47:02 +08:00
Alin Jerpelea
8975a65197 net: fix nxstyle errors
fix errors reported by nxstyle

Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
2021-04-02 11:12:25 -05:00
Gustavo Henrique Nihei
330eff36d7 sourcefiles: Fix relative path in file header 2021-03-09 23:18:28 +08:00
Jiuzhu Dong
4d5a964f29 net: unify socket into file descriptor
Change-Id: I9bcd21564e6c97d3edbb38aed1748c114160ea36
Signed-off-by: Jiuzhu Dong <dongjiuzhu1@xiaomi.com>
2021-03-03 19:01:41 -08:00
Alin Jerpelea
37d5c1b0d9 net: Author Gregory Nutt: update licenses to Apache
Gregory Nutt has submitted the SGA and we can migrate the licenses
 to Apache.

Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
2021-02-20 00:38:18 -08:00
Alin Jerpelea
7dc7ef45f1 net: nxstyle fixes
Nxstyle fixes to pass CI.

Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
2021-02-20 00:38:18 -08:00
YAMAMOTO Takashi
ff6201fc0a net/udp/udp_sendto_buffered.c: Fix a syslog format 2020-11-24 22:31:33 -08:00
chao.an
73d5700183 net/udp: fix nxstyle warning
Signed-off-by: chao.an <anchao@xiaomi.com>
2020-11-10 19:40:41 -08:00
chao.an
95be9eaf4b net/callback: remove the assert check of conn instance
remove the connection assertion since the instance will be invalid
if the network device has been taken down.

net/netdev/netdev_ioctl.c:

1847 void netdev_ifdown(FAR struct net_driver_s *dev)
1848 {
...
1871       /* Notify clients that the network has been taken down */
1872
1873       devif_dev_event(dev, NULL, NETDEV_DOWN);
...
1883 }

Change-Id: I492b97b5ebe035ea67bbdd7ed635cb13d085e89c
Signed-off-by: chao.an <anchao@xiaomi.com>
2020-11-10 19:40:41 -08:00
Gregory Nutt
57bc329aac Run nxstyle all .c and .h files modified by PR. 2020-05-17 14:01:00 -03:00
Gregory Nutt
a569006fd8 sched/: Make more naming consistent
Rename various functions per the quidelines of https://cwiki.apache.org/confluence/display/NUTTX/Naming+of+OS+Internal+Functions

    nxsem_setprotocol -> nxsem_set_protocol
    nxsem_getprotocol -> nxsem_get_protocol
    nxsem_getvalue -> nxsem_get_value
2020-05-17 14:01:00 -03:00
chao.an
87af256ad6 net/udp: fix nxstyle warning
Signed-off-by: chao.an <anchao@xiaomi.com>
2020-05-15 07:27:01 -06:00
chao.an
7a62a59dec net/conn: generate port base dynamically
In some extreme scenarios(eg. crash, reboot, reset, etc...),
an established connection cannot guarantee that the port can be
closed properly, if we try to reconnect quickly after reset, the
connection will fail since the current port is same as the
previous one, the previous port connection has been hold on server side.

dynamically apply for the port base to avoid duplication.

Change-Id: I0089244b2707ea61f553a4dae09c7af3649c70bd
Signed-off-by: chao.an <anchao@xiaomi.com>
2020-05-15 07:27:01 -06:00
chao.an
a5868864bc net: remove unnecessary spaces
minor style fix

Change-Id: I06b6fe48628440490090b89a39baf01481f79b79
Signed-off-by: chao.an <anchao@xiaomi.com>
2020-05-14 07:54:57 -06:00
Xiang Xiao
63e3054ced Don't need monitor IOB buffer empty event for POLLOUT implementation
It's enough to check the buffer available in the net event handler

Change-Id: I2d7c7a03675cf6eff6ffb42a81b7c7245253e92c
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2020-05-13 06:50:07 -06:00
patacongo
861efdf8a3
net/: Whenever the network initializes an IPv4 address, it must clear sin_zero. 2020-02-25 15:53:39 +01:00
Xiang Xiao
cde88cabcc Run codespell -w with the latest dictonary again
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2020-02-23 22:27:46 +01:00
chao.an
c65d8e6a23 net/socket: add MSG_DONTWAIT support
MSG_DONTWAIT (since Linux 2.2)
  Enables nonblocking operation; if the operation would block, the
  call fails with the error EAGAIN or EWOULDBLOCK. This provides
  similar behavior to setting the O_NONBLOCK flag (via the fcntl(2)
  F_SETFL operation), but differs in that MSG_DONTWAIT is a per-call
  option, whereas O_NONBLOCK is a setting on the open file description
  (see open(2)), which will affect all threads in the calling process
  and as well as other processes that hold file descriptors referring
  to the same open file description.
2020-02-19 12:21:28 -06:00
Xiang Xiao
5c80b94820 Replace #include <semaphore.h> to #include <nuttx/semaphore.h>
Since the kernel side should call nxsem_xxx instead and remove the unused inclusion
2020-02-01 08:27:30 -06:00
Xiang Xiao
68951e8d72 Remove exra whitespace from files (#189)
* Remove multiple newlines at the end of files
* Remove the whitespace from the end of lines
2020-01-31 09:24:49 -06:00
Greg Nutt
6b413ec241 net/tcp: Fix errors found in build testing.
Author: Gregory Nutt <gnutt@nuttx.org>

    net/tcp: Fix errors found in build testing.

    Recent re-organization moved some functions from net/inet to net/tcp and net/udp.  This include references to nxsem_wait(), SEM_PRIO_NONE, and other internal NuttX semaphore functions.  These all failed to compile because nuttx/semaphore.h was not included in any of the files.
2020-01-22 12:29:26 -03:00
Xiang Xiao
e75b5e9d86 net/tcp and udp: Move tcp/udp recvfrom into tcp/udp folder
Move tcp/udp recvfrom into tcp/udp folder and remove inet_recvfrom.c
2020-01-21 08:30:39 -06:00
Xiang Xiao
e869a10c18 net/tcp, udp: Move tcp/udp close operation into tcp/udp folder
Move tcp/udp close operation into tcp/udp folder and remove inet_close.c
2020-01-21 08:30:39 -06:00
Xiang Xiao
677536ccf5 net/udp: Rename udp_psock_sendto_xxx.c to udp_sendto_xxx.c like TCP
Rename udp_psock_sendto_xxx.c to udp_sendto_xxx.c like TCP and remove udp_psock_send.c
2020-01-21 08:30:39 -06:00
chao.an
a4aa8ae491 wqueue/notifier: update the work notifier usage
usage changed after commit 90c52e6f8f

Change-Id: Ifb0d739b046a6794b5b3ac177f489fb9a1c5c799
Signed-off-by: chao.an <anchao@xiaomi.com>
2020-01-21 14:16:19 +08:00
chao.an
2d0baa779d net/udp: break the network lock to avoid deadlock
Author: chao.an <anchao@xiaomi.com>

    net/udp: break the network lock to avoid deadlock

      network deadlock when udp sendto() storm is coming

    net/close: force wait tx drain to complete

      atomic send() and close() will causes data to be discarded directly

Signed-off-by: chao.an <anchao@xiaomi.com>
2020-01-16 14:26:48 -03:00
Xiang Xiao
5c5c08efcd network: simplify the timeout process logic
1.Consolidate absolute to relative timeout conversion into one place(_net_timedwait)
2.Drive the wait timeout logic by net_timedwait instead of devif_timer
This patch help us remove devif_timer(period tick) to save the power in the future.

Change-Id: I534748a5d767ca6da8a7843c3c2f993ed9ea77d4
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2020-01-11 08:24:49 -06:00
Xiang Xiao
346336bb9e Make the read ahead buffer unselectable
Here is the email loop talk about why it is better to remove the option:
https://groups.google.com/forum/#!topic/nuttx/AaNkS7oU6R0

Change-Id: Ib66c037752149ad4b2787ef447f966c77aa12aad
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2020-01-11 08:24:49 -06:00
Xiang Xiao
6a3c2aded6 Fix wait loop and void cast (#24)
* Simplify EINTR/ECANCEL error handling

1. Add semaphore uninterruptible wait function
2 .Replace semaphore wait loop with a single uninterruptible wait
3. Replace all sem_xxx to nxsem_xxx

* Unify the void cast usage

1. Remove void cast for function because many place ignore the returned value witout cast
2. Replace void cast for variable with UNUSED macro
2020-01-02 10:54:43 -06:00
Xiang Xiao
02b652ce1c Minor fix (#23)
* fix ieee802154/ieee802154_input.c:179:7: error: too few arguments to function 'iob_free'
       iob_free(container->ic_iob);
       ^~~~~~~~

ieee802154/ieee802154_input.c:180:7: error: too many arguments to function 'ieee802154_container_free'
       ieee802154_container_free(container, IOBUSER_NET_SOCK_IEEE802154);
       ^~~~~~~~~~~~~~~~~~~~~~~~~

* fix udp/udp_netpoll.c:327:10: warning: 'ret' may be used uninitialized in this function [-Wmaybe-uninitialized]

* fix local/local_netpoll.c:154:15: warning: implicit declaration of function 'nxsem_post'; did you mean 'sem_post'? [-Wimplicit-function-declaration]
               nxsem_post(fds->sem);
               ^~~~~~~~~~
               sem_post
2020-01-02 09:35:50 -06:00
Xiang Xiao
5fb5a9dfdd psock_udp_sendto should call udp_wrbuffer_tryalloc for nonblock socket (#20)
net/udp/udp_wrbuffer.c:  Add new function udp_wrbuffer_tryalloc()
net/udp/udp_psock_sendto_buffered.c:  If the socket was opened with O_NONBLOCK, then use udp_wrbuffer_tryalloc() so that the caller will not wait for a write buffer.  Return EGAIN if udp_wrbuffer_tryalloc() failes.
2019-12-31 09:52:40 -06:00
Xiang Xiao
90c52e6f8f Squashed commit of the following:
Author: Gregory Nutt <gnutt@nuttx.org>

    Run all .h and .c files modified in last PR through nxstyle.

Author: Xiang Xiao <xiaoxiang@xiaomi.com>

    Net cleanup (#17)

    * Fix the semaphore usage issue found in tcp/udp

    1. The count semaphore need disable priority inheritance
    2. Loop again if net_lockedwait return -EINTR
    3. Call nxsem_trywait to avoid the race condition
    4. Call nxsem_post instead of sem_post

    * Put the work notifier into free list to avoid the heap fragment in the long run.  Since the allocation strategy is encapsulated internally, we can even refine the implementation later.

    * Network stack shouldn't allocate memory in the poll implementation to avoid the heap fragment in the long run, other modification include:

    1. Select MM_IOB automatically since ICMP[v6] socket can't work without the read ahead buffer
    2. Remove the net lock since xxx_callback_free already do the same thing
    3. TCP/UDP poll should work even the read ahead buffer isn't enabled at all

    * Add NET_ prefix for UDP_NOTIFIER and TCP_NOTIFIER option to align with other UDP/TCP option convention

    * Remove the unused _SF_[IDLE|ACCEPT|SEND|RECV|MASK] flags since there are code to set/clear these flags, but nobody check them.
2019-12-31 09:26:14 -06:00
Xiang Xiao
1905e01fda net/: ICMP/ICMPv6/TCP/UDP poll shouldn't set POLLHUP and POLLOUT at the same time the standard require that only report POLLHUP:
https://pubs.opengroup.org/onlinepubs/009695399/functions/poll.html.
2019-11-25 09:59:50 -06:00
Xiang Xiao
af9c67ab58 net/tcp/tcp_netpoll.c and net/udp/udp_netpoll.c: In [tcp|udp]_iob_work fix the wrong condition logic (& vs &&). 2019-11-25 09:32:24 -06:00
Xiang Xiao
98fc60eb75 [tcp|udp]_poll_eventhandler check psock_[tcp|udp]_cansend before report POLLOUT. Change the unbuffered psock_[tcp|udp]_cansend return OK to unify the code logic and remove the unnecessary [tcp|udp]_poll_txnotify call. 2019-11-24 10:30:48 -06:00
Xiang Xiao
893fc6e1cf net/udp/udp_netpoll.c: Report POLLHUP and POLLERR in 'revents' regardless the requested 'events' set. Per Opengroup.org, these bits must be ignored in the 'events' set. 2019-11-24 10:18:08 -06:00
Gregory Nutt
2991987018 net/netlink/netlink_route.c (mostly): This completes a minimal netlink implementation that will retrieve the ARP table.
net/netlink:  Add basic hooks (only) to support the NETLINK_ROUTE protocol.
2019-11-03 13:59:42 -06:00
Gregory Nutt
3b275fcf4e net/: Run nxstyle against all C files. 2019-10-25 11:31:42 -06:00
Gregory Nutt
1ba23bb75c net/udp/udp_psock_sendto_buffered.c: Add a check for the device that is polling. In the multiple network device case, this check is necessary to prevent sending the UDP packet to the wrong device. This change addresses the buffered case and is the companion to commit 6c46c48e4b. 2019-10-18 16:04:33 -06:00
Gregory Nutt
6c46c48e4b net/udp/udp_psock_sendto_unbuffered.c: Add a check for the device that is polling. In the multiple network device case, this check is necessary to prevent sending the UDP packet to the wrong device. This change addresses only the unbuffered case. The buffered case is more complex. See patch attached to issue 172. 2019-10-18 14:20:34 -06:00
Xiang Xiao
5fd8f78bf9 net/ipforward, tcp, and udp: Fix a chicken and egg problem by eliminating the check of the arp/neighbor tables before packet transmission
1. For buffered tcp/udp case, if CONFIG_NET_ARP_SEND/CONFIG_NET_ARP_IPIN/CONFIG_NET_ICMPv6_NEIGHBOR isn't enabled and the table doesn't contain ip<->ethaddr mapping yet, the logic will skip the realtransmission and then arp/neighbor can't steal the final buffer to generate arp/icmpv6 packet.
2.for all other case, the tcp layer or user program should already contain the retransmit logic, the check is redundancy and may generate many duplicated packets if arp/icmpv6 response is too slow because the cursor stop forward. If user still concern about the very first packet lost, he could fix the issue by enabling CONFIG_NET_ARP_SEND/CONFIG_NET_ICMPv6_NEIGHBOR at begin.
2019-09-18 12:33:41 -06:00
Gregory Nutt
6266e067e9 net/: Re-order the content of all address-family socket 'connection' structures so that they begin with a comomon prologue. This permits better use of logic for different address family types. 2019-09-01 08:47:01 -06:00
Gregory Nutt
a52ceac13e net/: Now handles reception of IPv4 packets with larger IPv4 headers containing options. 2019-08-31 12:25:30 -06:00
Anthony Merlino
70404ed0dc Merged in antmerlino/nuttx/iobinstrumentation (pull request #1001)
Iobinstrumentation

* mm/iob: Introduces producer/consumer id to every iob call. This is so that the calls can be instrumented to monitor the IOB resources.

* iob instrumentation - Merges producer/consumer enumeration for simpler IOB user.

* fs/procfs: Starts adding support for /proc/iobinfo

* fs/procfs: Finishes first pass of simple IOB user stastics and /proc/iobinfo entry

Approved-by: Gregory Nutt <gnutt@nuttx.org>
2019-08-16 22:42:25 +00:00
Juha Niskanen
d5382cde17 net/udp/udp_psock_sendto_buffered.c: Fixes a copy-paste error in the new SO_LINGER code: CONFIG_TCP_NOTIFIER to CONFIG_UDP_NOTIFIER. 2019-08-05 07:42:14 -06:00
David S. Alessio
20e8a83c5f net/udp/udp_txdrain.c: Add missing header file. 2019-07-29 08:12:55 -06:00
Gregory Nutt
124212624d net: Minor fix in error checking in TCP/UDP Tx drain logic 2019-07-28 07:39:55 -06:00
Gregory Nutt
361d85ae35 net/tcp and udp: Fix errors in the new implementation of SO_LINGER. The tcp_drain() and udp_drain() functions were casting the working argument to the wrong type, resulting in hangs and abnormal behavior. There is a complexity in the tcp drain logic when the remote peer closes the socket before all Tx data has been flushed. Sometimes we are not notified of this case and wait the entire timeout unnecessarily. There is a workaround in place in tcp_txdrain(), but this really should be revisited. 2019-07-27 10:26:52 -06:00
Masayuki Ishikawa
5fd5cc0b0a Merged in masayuki2009/nuttx.nuttx/change_udp_broadcast (pull request #954)
net/udp: Remove net stack dependency from CONFIG_NET_BROADCAST

This change allows us to use CONFIG_NET_BROADCAST without network
stack. (i.e. usrsock application can use broadcast)

Signed-off-by: Masayuki Ishikawa <Masayuki.Ishikawa@jp.sony.com>

Approved-by: Gregory Nutt <gnutt@nuttx.org>
2019-07-26 14:05:03 +00:00
Gregory Nutt
1346f29151 net/: Fix alignment and spacing problems found by tools/nxstyle. 2019-07-02 18:02:23 -06:00
Gregory Nutt
574595dc32 Still fixing new warnings found in build testing. 2019-07-01 15:56:34 -06:00
Gregory Nutt
de5a6163d5 This commit implements a proper version of SO_LINGER. Not sufficiently tested on initial commit.
Squashed commit of the following:

    net/: Fix some naming inconsistencies, Fix final compilation issies.

    net/inet/inet_close():  Now that we have logic to drain the buffered TX data, we can implement a proper lingering close.

    net/inet,tcp,udp:  Add functions to wait for write buffers to drain.

    net/udp:  Add support for notification when the UDP write buffer becomes empty.

    net/tcp:  Add support for notification when the TCP write buffer becomes empty.
2019-07-01 12:25:32 -06:00
Gregory Nutt
ee9e8c6bc2 udp\udp_callback.c: Fix another C89 compatibility problem. Empty initializers are not permitted. Caused ez80 build failure. 2019-06-03 09:23:19 -06:00
Gregory Nutt
2767e80459 Squashed commit of the following:
ez80:  Fixing a few more compile problems.  I am afraid that the 5.3.0 compiler it too buggy to use.
    ez80:  Additional build-related fixed.
    eZ80:  Updating to use the newest ZDSII 5.3.0 toolchain.
2019-06-02 11:05:31 -06:00
Gregory Nutt
b49be4bb20 Squashed commit of the following:
arch/:  Removed all references to CONFIG_DISABLE_POLL.  The standard POSIX poll() can not longer be disabled.
    sched/ audio/ crypto/:  Removed all references to CONFIG_DISABLE_POLL.  The standard POSIX poll() can not longer be disabled.
    Documentation/:  Removed all references to CONFIG_DISABLE_POLL.  The standard POSIX poll() can not longer be disabled.
    fs/:  Removed all references to CONFIG_DISABLE_POLL.  The standard POSIX poll() can not longer be disabled.
    graphics/:  Removed all references to CONFIG_DISABLE_POLL.  The standard POSIX poll() can not longer be disabled.
    net/:  Removed all references to CONFIG_DISABLE_POLL.  The standard POSIX poll() can not longer be disabled.
    drivers/:  Removed all references to CONFIG_DISABLE_POLL.  The standard POSIX poll() can not longer be disabled.
    include/, syscall/, wireless/:  Removed all references to CONFIG_DISABLE_POLL.  The standard POSIX poll() can not longer be disabled.
    configs/:  Remove all references to CONFIG_DISABLE_POLL.  Standard POSIX poll can no longer be disabled.
2019-05-21 18:57:54 -06:00
anchao
a418b63e07 net/udp/udp_callback.c: Initialize address structure to avoid random values in padding. 2019-03-19 09:49:54 -06:00
Gregory Nutt
f6b00e1966 tools/nxstyle.c: Fix logic error that prevent detecion of '/' and '/=' as operators. net/: Minor updates resulting from testing tools/nxstyle. 2019-03-11 12:48:39 -06:00
Gregory Nutt
69056d4053 net/: The value ERROR should never be returned from internal OS functions. That is reserved for returning values to appliations with the errno value set. Within the OS, errors are returned with a negated errno value ALWAYS. 2019-02-14 15:38:36 -06:00
Gregory Nutt
efe65749ce Fix condition logic: The setup seems to support a network without sockets. That is not the case.
Squashed commit of the following:

    sched/sched/sched_getsockets.c:  Fix an error in conditional compilation.
    fs/:  Remove all conditional logic based on CONFIG_NSOCKET_DESCRIPTORS == 0
    Documentation/:  Remove all references to CONFIG_NSOCKET_DESCRIPTORS == 0
    include/:  Remove all conditional logic based on CONFIG_NSOCKET_DESCRIPTORS == 0
    libs/:  Remove all conditional logic based on CONFIG_NSOCKET_DESCRIPTORS == 0
    net/:  Remove all conditional logic based on CONFIG_NSOCKET_DESCRIPTORS == 0
    sched/:  Remove all conditional logic based on CONFIG_NSOCKET_DESCRIPTORS == 0
    syscall/:  Remove all conditional logic based on CONFIG_NSOCKET_DESCRIPTORS == 0
    tools/:  Fixups for CONFIG_NSOCKET_DESCRIPTORS no longer used to disable sockets.
2019-02-11 15:47:25 -06:00
Xiang Xiao
fe421022e2 sched/wqueue/kwork_notifier.c and several Kconfig files: Notifier should work with either lpwork or hpwork and other minor typo fix. 2019-01-27 11:02:56 -06:00
Gregory Nutt
b0ba5b69c4 net/udp/Kconfig: Auto-select CONFIG_WQUEUE_NOTIFIER when CONFIG_UDP_READAHEAD_NOTIFIER is selected. 2018-11-10 09:43:44 -06:00
Xiang Xiao
0a6e234962 net/neighbor: neighbor_lookup() checks if the target IP belongs to one of the local network devices. 2018-11-09 14:14:15 -06:00
Xiang Xiao
9e42bede2f net/udp/udp_finddev.c: Fallback to netdev_default device if the device is not found, rather than arbitrary using the device at the head of the list of devices. 2018-11-09 11:05:45 -06:00
Gregory Nutt
9c3e65f15f net/mld: Fix a few compilation problems that cropped up in a different network configuration. Fix a logic error in setting the 'Other Querier Present' timer. Various cosmetic improvements. 2018-11-07 18:21:21 -06:00
Gregory Nutt
42a018747e net/devif, net/tcp, and net/udp: Extend the logic of 6c0ab0e077 so that all support Transport protocols support by IPv6 can handle the presence of IPv6 header extension options. 2018-11-02 17:50:01 -06:00
Gregory Nutt
88130a996a net/: Fixes for more coding standard issues detected by nxstyle. 2018-10-29 18:00:30 -06:00
Gregory Nutt
7d2b250cbc net/netdev: All utility functions that lookup network devices should begin with netdev_findby_. Also correct some comments and the name of a formal parameter. 2018-10-29 12:21:22 -06:00
Gregory Nutt
8c4cefdd10 Fix some new warndings found in build testing. 2018-09-15 13:22:45 -06:00
Gregory Nutt
6e60af91e4 net/udp/udp_netpoll.c: Port TCP poll changes to UDP. 2018-09-12 10:10:54 -06:00
Gregory Nutt
a680553f35 net/tcp/tcp_netpoll.c: Add logic to receive notifications when IOBs are freed (Needs CONFIG_NET_TCP_WRITE_BUFFERS and CONFIG_IOB_NOTIFIER). At present, does nothing because the logic in in psock_tcp_cansend() does not check for the availability of IOBs. That will change. 2018-09-12 06:40:18 -06:00
Gregory Nutt
884ee6e43e net/tcp and net/udp: In the POLLOUT poll logic, request an immediate Tx poll from the network device bound to the socket. This obviously cannot work if there is not single device bound to the network device. 2018-09-11 10:31:11 -06:00
Gregory Nutt
11a635dcb3 mm/iob: IOB free notifier should accept the work queue ID as a paramter. The notification may need to run on either the high- or low- priority work queue. sched/work: Change the default priority of the low-priority work queue to 100. 2018-09-11 08:49:39 -06:00
Gregory Nutt
9d3148406c Signals were not a good choice of IPC to implement the poll function for several reasons: In order to handle the asynchrnous poll-related event, a substantial amount of state information is needed. Signals are only capable of passing minimal amounts of data. There are also complexities with performing kernel space signal handlers in kernel space code that is better to avoid. So, instead of signals, the equivalent logic was converted to run via a callback that executes on the high-priority work queue.
Squashed commit of the following:

    Fix up some final compile isses.

    net/netdev:  Convert the network down notification logic to use the new wqueue-based notification factility.

    net/udp:  Convert the UDP readahead notification logic to use the new wqueue-based notification factility.

    net/tcp:  Convert the TCP readahead notification logic to use the new wqueue-based notification factility.

    mm/iob:  Convert the IOB notification logic to use the new wqueue-based notification factility.

    sched/wqueue:  Signals are not good IPCs to support the target poll functionality for several reasons including the amount of data that can be passed with a signal and in the fact that in protected and kernel modes, user threads executing signal handlers in protected, kernel memory is problematic.  Instead, convert the same logic to perform the notifications via function callback on the high priority work queue.
2018-09-09 15:01:44 -06:00
Gregory Nutt
20814acad2 sched/signal: In signal notification facility, use sigqueue() to notify vs. kill(). With sigqueue, we can pass more info (but still not enough). 2018-09-09 11:57:25 -06:00
Gregory Nutt
32e3e51678 net/netdev: Add signal notification for the case where the network goes down. 2018-09-09 10:39:25 -06:00
Gregory Nutt
28f73bd928 net/tcp and udp: Add logic to signal events when TCP or UDP read-ahead data is buffered.
Squashed commit of the following:

    net/tcp:  Add signal notification for the case when UDP read-ahead data is buffered.  This is basically of clone of the TCP notification logic with naming adapted for UDP.

    net/tcp:  Add signal notification for the case when TCP read-ahead data is buffered.
2018-09-09 09:21:39 -06:00
Gregory Nutt
3bf96c8e7e net/arp: Improve arp_find() commit 9774d35010 to reduce the amount and frequency of data copies. 2018-08-25 07:12:21 -06:00
Gregory Nutt
9774d35010 net/arp: Make the function arp_find() thread-safe. It now returns a copy of the ARP table entry, rather than a potentially unstable reference to the ARP table entry. 2018-08-24 17:36:08 -06:00
Xiang Xiao
e1202d2ed3 Replace all ASSERT with DEBUGASSERT to save the code space 2018-08-24 06:58:30 -06:00
Jake Choy
b1daa22040 net/udp/udp_finddev.c: Fix for network byte-order issue when checking if an address is a multicast address. 2018-07-17 11:18:11 -06:00